Shuttle dkiving mechanism foe looms



J. STEVER. SHUTTLE DRIVING MECHANISM FOR LOOMS.

Patented Jan. 18 1870;

rm: Moms wzrans co PNOYO-LITNOY. msumm'm.

JEREMIAH STEVER, or BRISTOL, ASSIGNOR' To ISAAC NEWTON, or

WATERBURY, CONNECTICUT.

Letters Patent No, 99,024, dated January 18,1870.

IMPROVEMENT IN SHUTTLE DRIVING NIECHARISM POR-LOOMS.

The Schedule referred to in these Letters. Patent and making part of the same 'l'o-all whom it may'concem Be it known that I, JEREMIAH STEVE-R, of Bristol, in the county of Hartford, and State of Connecticut, have invented a new Improvement in- Power-Looms; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and rep resent, in

Figure 1, a front view; 1

Figure 2, a side view;

Figure 3, a top view; and in Figure 4, a section on line a: 2:, looking toward the front.

- This invention relates to an improvement in power: looms, especiall' in the operation of the picker for throwing the, s nt-tle, the object being to throw the shuttle with 'the same velocity, whether the loom be working slow or fast; and

.The invention consists in the arrangement of a pal of barrel-springs, so as to be wound respectively at ,alternatebeats of the lay, and each let oil at. the proper time to drive the pickers from one side to the other, as the case may be. I A "is'the frame of the loom, of any known construction.

B, the lay, also of common construction, and actuated in the usual manner, here represented as by eccentrics C on the shaft D.

E and E are pickers, arrangeds'o as to vwork in the layat their respective ends.

F and F'are two barrelsprings, arranged in bear-' ings j; the said spring being constructed in the usual manner of barrel-springs for other purposes, and so that the spn'ng is first wound by turning the shaft,

- while the barrel remains stationary, by means of square stems (1, extending through the ratchets d, which have pawls e, to confine them when the springs are wound .to the proper tension.

The pickers are attached, by cords or chains L, to the barrel. v

The said barrel-springs, having been wound up by the stems, and properly set to give them a certain degree of strength, are respectively operated on, and alternately further wound, by cams I and I, fixed upon thereby wind up and tighten the spring, and hold it tightened, until the point of the cam escapes from. the

stud, when the barrel,'being free, will he suddenly re} turned to the position shown in fig. 4, atthe left,.and will draw with it the picker, which will throw the shuttle through the shed to the opposite picker, which will 7 be operated on by that picker and its connectionor': barrel, The barrel and cam are represented at the right, in fig. 4,- in the positions they occupy with each other when the barrel has been wound up by the cam,

and the barrel remains in that position until the point of the cam passes its pin, when it is suddenly turned, and throws the shuttle; By this operation, the shuttle is thrown with equal velocity, however slow or fast the other portions of the loom may be moving, hence insuring the throwing of the shut-tle entirely through to the opposite picker.

The force with which the shuttle is thrown may be regulated by turning the ratchets ato the shafts, of which the inner ends of the springs are attached.

I do not wish to. be understood as broadly claiming the throwing of the shuttle by the reaction of a spring, .as such, I am aware, is not new; but

I do claim, as my invention- 1. In combination with the respective pickers E and E, the barrel-springs F and E, operated by the cams I and I, when arranged in the mannerdescribed, so as to throw the shuttle, as set forth.

2. In combination with the above the adjustingratchets d dand pawls e, for the purpose specified.

JEREMIAH STEVER. Witnesses:

'J. H. SHUMWAY, A. J. TIBBI'rs. 

